Nut-lock



L.D.BEST.

NUT LOOK.

No. 252,924. Patented Jan. 31,1882.

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UNITED STATES PATENT @rrtce.

LOUIS D. BEST, OF CANAL DOVER, OHIO.

NUT-LOCK.

SPECIFICATION formingpart of Letters Patent No. 252,924, dated January 31, 1862.

Application filed October 10, 1881. (No model.)

T 0 all whom it may concern: A Beit known thatI, LoUIs D. BEST, acitizen of the United States of America, residing at Canal Dover, in the county of Tuscarawas and State of Ohio, have invented certain new and u efnl Improvements in Nut-Locks; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters orfigures ofret'erence marked thereon, which form a part of this specification.

My invention consists of a novel construction 1 understood by] the following description and claims.

ot'nut-lock, which will be fully In the accompanying drawings, Figure 1 is a side view of a railroad-rail joint, with bolts and nuts, to which my invention is applied. Fig. 2 is a top view of the same.

In the application of my improved nut-lock to a joint in a railroad-rail I may make the rail A of any suitable form and apply to the joint a fish-p ate, F, with tour bolts, 0, in the usual manner. I

A locking plate, D, is made with slots d therein, so as to slide on the bolts. This plate has a series of shoulders, d, having V-shaped notches d therein, adapted tocatch the corner of the nut, as shown in Fig. I on the left-hand; and the vertical shoulders are intended to meet the sides of the nuts, as seen at the right-hand in Figs. 1 and 2. Thus the nuts may be held at every one-eighth revolution by either the vertical shoulder or the V-shaped notches above mentioned.

. The thinner parts of the plate D-those parts between the shoulder d-are made slightly wedge shape, and after the nuts are turned home the plate is driven endwise toward the right in order to lock all of the nuts, and at the same time to tighten the strain of the bolts on the fish-plate and locking-plate. After the locking-plate is thus driven to the left, a spike, E, is driven into the tie B, so as to bear against the shoulder d, right opposite the joint in the rails, and thus prevent the plate D from working to the left, and at the same time more tightly holding the endsof the rails. In order to remove the nuts and bolts it is first necessary to draw this spike E, and then drive the plate D to the left, and then the nuts may be turned off and the bolts withdrawn.

Having described my invention, what I claim is A sliding plate, D, provided with shoulders (Z and V-shaped notches d, and wedge-shape] bearing between the shoulders d, substantially as and for the purposes set forth.

In' testimony whereof I affix my signature in presence of two witnesses.

" LOUIS D. BEST.

Witnesses:

DANIEL BREED, GEo. F. GRAHAM. 

